Locks and keys also allow you to secure your building, but when keys are lost or stolen, the inconvenience and expense of changing locks and re-issuing keys can be considerable. Keys may also be copied, creating even more security risks.
All businesses, whether small, medium or large, have assets that need to be protected from theft. There is also the issue of protecting staff and their property. It is common in buildings that are secured by locks and keys for doors to be left unlocked all day. This opens up the possibility of opportunist theft and malicious damage.